conversionController.js
For the full content of this gist, refer to https://gist.github.com/CodingAbdullah/ce33919530ff739e92497f9c8baca479
McMaster. Software Engineer with a keen interest in blockchain and web3.
const hex2dec = require("hex2dec"); // Package for conversions and from hexadecimal and decimal
exports.decToBinConversion = (req, res) => {
const { dec } = JSON.parse(req.body.body);
// Client-side will ensure only numbers are entered so no need to check with regex here
let binaryValue = parseInt(dec, '10').toString(2); // Convert decimal number to binary
// Binary value sent as response
res.status(200).json({
value: binaryValue
});
}
exports.decToHexConversion = (req, res) => {
const { dec } = JSON.parse(req.body.body);
// Client-side will ensure only numbers are entered so no need to check with regex here
let hexValue = hex2dec.decToHex(String(dec)); // Incorporate the hex2dec package
// Hex value sent as response
res.status(200).json({
value: hexValue
});
}
exports.binToDecConversion = (req, res) => {
const { bin } = JSON.parse(req.body.body);
// Regex for checking to see if any numbers outside of 0 and 1 are found
if (String(bin).match(/[2-9]/) !== null) {
res.status(400).json({});
}
else {
let decValue = parseInt(bin, '2').toString(10); // Convert binary to decimal
// Decimal value sent as response
res.status(200).json({
value: decValue
});
}
}
exports.binToHexConversion = (req, res) => {
const { bin } = JSON.parse(req.body.body);
// Regex for checking to see if any numbers outside of 0 and 1 are found
if (String(bin).match(/[2-9]/) !== null) {
res.status(400).json({});
}
else {
let hexValue = parseInt(bin, '2').toString(16); // Convert binary to hexadecimal
// Hexadecimal value sent as response
res.status(200).json({
value: hexValue
});
}
}
exports.hexToBinConversion = (req, res) => {
const { hex } = JSON.parse(req.body.body);
// Regex for checking to see if value is alphanumeric
if (hex.match(/^[a-zA-Z0-9]+$/) === null) {
res.status(400).json({});
}
else {
let binValue = parseInt(hex, '16').toString(2); // Convert hexadecimal to binary
// Binary value sent as response
res.status(200).json({
value: binValue
});
}
}
exports.hexToDecConversion = (req, res) => {
const { hex } = JSON.parse(req.body.body);
// Regex for checking to see if value is alphanumeric
if (hex.match(/^[a-zA-Z0-9]+$/) === null) {
res.status(400).json({});
}
else {
let decValue = hex2dec.hexToDec(hex); // Convert hexadecimal to decimal
// Decimal value sent as response
res.status(200).json({
value: decValue
});
}
}